GT.M is a high end platform for developing transaction processing database applications. Individual database files in the terabyte range are supported; a logical database can consist of many files. It provides full support for ACID transactions using a Software Transaction Memory (STM) programming model and optimistic concurrency control. The GT.M data model is hierarchical associative memory (i.e. multi-dimensional arrays) that imposes no restriction on the data types of the indexes or content, nor any restriction on the schema is that imposed by the application. Such databases are also referred to as "document oriented", "schemaless", or "schema-free".
|Tags||Database Database Engines/Servers|
|Operating Systems||Linux Tru64 UNIX OpenVMS|
Release Notes: GT.M 6.0-002 and the new GTMJI GT.M Java plugin together extend the usefulness of both GT.M and Java by enabling in-process calls between Java and M application code. Together, they make the power of GT.M available to Java application code, and allow GT.M applications to access functionality written in a popular programming language. 6.0-002 implements the changes within GT.M needed to allow access from and to Java application code, and GTMJI enables Java application code to call and be called by M code. GTMJI is released as source code to be compiled and installed on each system.
Release Notes: This release adds a number of useful enhancements to GT.M.
Release Notes: Database file limits were significantly extended. The maximum supported key size was increased from 255 to 1,019 bytes. The new maximum global variable node size is 1,048,576 bytes (1 MB). The maximum size of a database file is now 1,040,187,392 (992 Mi) blocks. Operationally, MUPIP REORG TRUNCATE now reclaims and frees additional types of unused space from database files. The IO impact of MUPIP INTEG FAST has been reduced. There were also smaller enhancements and bugfixes.
Release Notes: This release has some timely bugfixes.
Release Notes: This release adds major new functionality and platform support, including database encryption and alias variables. The database file size limit has been increased from 128M to 224M blocks. There are performance enhancements, among others, especially for applications that use Transaction Processing. Compilation is faster and uses less memory. MUPIP LOAD is much faster in UTF-8 mode. There are smaller enhancements, remedied misfeatures, and bugfixes.